GPU: Reduce MakeCurrent calls to fix Orange San Diego

gpu/command_buffer/service/feature_info.cc

Index: gpu/command_buffer/service/feature_info.cc
diff --git a/gpu/command_buffer/service/feature_info.cc b/gpu/command_buffer/service/feature_info.cc
index 0c1813916f9b40cb55941997f73df8b751ae851e..4fcab22accfed798d226d8a3b0f53b1d1587174e 100644
--- a/gpu/command_buffer/service/feature_info.cc
+++ b/gpu/command_buffer/service/feature_info.cc
@@ -230,6 +230,9 @@ void FeatureInfo::AddFeatures(const CommandLine& command_line) {
     if (is_vivante) {
       workarounds_.unbind_fbo_on_context_switch = true;
     }
+    if (is_imagination) {

[greggman, 2013/05/03 18:28:09]

I'd prefer to only set the switch once (merge this if and the one above) but up
to you

+      workarounds_.unbind_fbo_on_context_switch = true;
+    }
 #if defined(OS_MACOSX)
     workarounds_.needs_offscreen_buffer_workaround = is_nvidia;
     workarounds_.needs_glsl_built_in_function_emulation = is_amd;